Accelerator Radiation Safety Newsletter

(all articles are to be considered personal/professional in nature and do not reflect the opinions of the institutions described unless otherwise stated)

An Official Publication of the

Health Physics Society's Accelerator Section

Circulation: 493

Third Quarter 2014 /
Volume 24, Number 3



Steven Frey, Consultant

Jason Harris, Idaho State University

Elaine Marshall, Sandia National Laboratories

Past President:
Jason Harris, Idaho State University

Linnea Wahl, Consultant

Newsletter Editor: 
Stewart Smith, Oak Ridge National Laboratory 


Melissa Mannion (2015), Lawrence Berkeley National Laboratory 
Robert May (2015), Thomas Jefferson National Accelerator Facility

Don Cossairt (2016), Fermilab
Reginald Ronningen (2016), National Superconducting Cyclotron Laboratory

• Accelerator Section Website
• HPS Website
The Editor’s Message

Stewart Smith


Friends, Stewart has been experiencing computer problems and Internet inaccessibility due to his job. So, on his behalf, our Section’s Newsletter is presented here, a little late but well worth the wait!
Steve Frey

The President’s Message

Steve Frey


Hi everyone, although summer has (regrettably) ended, our Section made good use of it. Let’s take a moment to reflect back on the highlights of our Section’s doings since the last quarter, when summer began.


In particular, we conducted much good business during the 2014 HPS Annual Meeting in Baltimore and shortly afterward. To wit:


-          We had a great Technical Session. All available presentation timeslots for that day (July 15) were filled with interesting topics and presenters. Attendance was impressive throughout the whole Session. 

-          Our Section’s financial status is excellent. As of 05/31//2014, we had a net worth of little over $10,000, which we should be able to maintain without difficulty.   

-          Wade Patterson and Lutz E. Moritz award winners were recognized: Bindu KC for her presentation on photoproduction of Cu‑67 using linear accelerators, and Lienard Chang for his presentation on organ dose conversion coefficients for pediatric reference computational phantoms exposed to external photon beams.

-          New Section officers. We welcomed Elaine T. Marshall as our new President‑Elect, Linnea Wahl as our new Secretary‑Treasurer, and Stewart Smith as our new Newsletter Editor (and our Section’s webpage manager). All of our current officers are listed at our Section’s “Officers” webpage at:


(Minutes of our Section’s annual Board of Directors and Business Meetings held there in Baltimore can be found at our Section’s “Documents’ webpage at:


There also is much going on in the accelerator community and in the particle/photon physics arena. Doesn’t it seem poignant that, whenever it feels like there isn’t much new left to discover, something new and big pops up? This summer has been no exception. Take a look as some of the things and trends that are going on:


1. Dark matter particle research. The Department of Energy (DOE) and the National Science Foundation recently announced that they will fund new research into the possible existence of WIMPS (Weakly Interacting Massive Particles), as well as “axions”, as types of dark matter (Symmetry, 07/11/2014).


2. Tetraquarks. Some international researchers are proposing that the number of quarks in a hadron (e.g., protons and neutrons), is actually four, not three per conventional wisdom; hence, a “tetraquark.” Even stranger, two of the quarks supposedly are antiquarks, which then pair up with their quark counterparts to form a pair of mesons which themselves then bind together to form a hadron. The researchers say that such tetraquarks offer better solutions for quantum chromodynamics (QCD) than does the Standard Model of particle physics (Quanta Magazine, 08/27/2014). We shall see!


3. Cosmic Holography. FermiLab is beginning an experiment to help determine if our universe is actually a holographic projection. Even science fiction can’t make up such exotic stuff! The device being used to carry out the experiment is called a Holometer. This device essentially is a supercharged laser interferometer designed to detect “quantum jitter”. If quantum jitter is confirmed, it would imply that all information in the Universe is stored in 2‑dimensional (2‑D) quantum bits on its periphery and from which ‘reality’ as we know it is manifested via 3-D projection from them (Symmetry, 08/26/2014). By the way, this experiment invokes memories of a similar interferometer approach that Michaelson and Morley used all the way back in 1887 to study the speed of light. The results of that experiment absolutely revolutionized cosmology and led to the development of the Special Theory of Relativity. Perhaps the Holometer will yield a revolutionary scientific outcome of its own. In any event, the future need for particle accelerators to support research into its findings looks promising.


Now, for continuing education: as accelerator health physicists, we believe in the value of training. A good institutional source of such training can be found in the upcoming International Accelerator School and U.S. Particle Accelerator School. The School’s program is titled “Beam Loss and Accelerator Protection" and will be held from November 5–14 in Newport Beach, CA ( USPAS programs are rich in technical information. They are worth college credits, and American Academy of Health Physics (AAHP) continuing education credits, too. And one of our Section’s past presidents, Dr. Sayed Rokni, will be one of the instructors. Then, the annual U.S. Particle Accelerator School (USPAS) will be held at Old Dominion University in Hampton, Virginia from January 19-30, 2015 (

USPAS programs are rich in technical information. They are worth college credits, and American Academy of Health Physics (AAHP) continuing education credits, too. More on these Schools can be found in the “From the Correspondants” Newsletter section below. Check it out!

Now, let’s come back once more to the science core behind what we do: Dark matter, tetraquarks, and cosmic holography, whew! Studies of them sound like more and better accelerators (with more supporting accelerator health physicists) are going to be needed to figure them all out.


Our future looks bright, in many different ways.


Happy autumn!




PS.    The HPS Mid‑Year Meeting is coming up soon. Please consider attending! The program is also looking for posters and presentations, and we in the Accelerator Section are very good at providing such things. The meeting will be held in beautiful Norfolk, VA, from February 1st through the 4th of 2015. You can access the meeting website at for more information.


PPS. Shortly before this newsletter went to press, we learned of the passing of Geoffrey Stapleton. He was influential in the founding of the Accelerator Section and well regarded throughout our profession, as many of our Section members are noting. Our thoughts and prayers go out to Geoffrey’s family. Please see the eloquent reflection about Geoffrey by Robert May further down in this newsletter.

From Linnea Wahl, The Secretary/Treasurer:
Linnea Wahl

As the newly elected secretary/treasurer of the Health Physics Society (HPS) Accelerator Section, I thought newsletter readers might be interested in the section’s budget. The following information was prepared by Johannes Bauer and Steve Frey; it was presented by Jason Harris at the HPS Accelerator Section Board Meeting, held in Baltimore on 14 July 2014.


As of June 2014, the section’s budget stood at $10,380.44 (verified by the HPS Secretariat on 16 July 2014). This represents a $504.64 increase over the previous fiscal year’s beginning balance $9,875.80. The increase came from members’ dues less the HPS Secretariat’s standard 10% fee for managing dues payments. The section continues to be financially secure.


If you have any questions about the section’s finances, please let me know ( and I’ll find the answers.

Also From Linnea Wahl:
Linnea Wahl

The Engineering Division at Lawrence Berkeley National Laboratory (Berkeley Lab) invites applications for an experienced Accelerator Systems & Safety Engineer to develop, maintain and oversee the implementation of safety basis documents for Berkeley Lab accelerators and configuration management. Additional information on the position is available at



From Robert May, Accelerator Section Board Director:
Robert May


Geoffrey Stapleton passed away on October 4, 2014 after battling a rare form of cancer for several years. Geoffrey had over thirty years of experience with accelerator technology world‑wide and brought that experience to bear at CEBAF (now Jefferson Lab) for over a decade and at the what was to be the Superconducting Super Collider. He was active in the field of Accelerator Health Physics in the UK and the US. In the US, he was a founding member of the Accelerator Section and a Fellow of the Health Physics Society and a significant contributor to the efforts that led to the publication of the DOE Accelerator Safety Order and associated guidance document. He had a long love of science and enjoyed sharing that fascination with other life-long-learners. He loved to be challenged, even in his recreation; he was a private pilot and ocean yachtsman. Geoffrey was a wonderful, gregarious man, of faith and integrity. He is survived by his wife Shirley, daughters Helen and Lucy, and his son Johnathan and their families.  He will be greatly missed. The family asks that any monetary memorial for Geoffrey be directed to the International Waldenstrom’s Macroglobulinemia Foundation, 3932D Swift Road, Sarasota, FL, 34231 6541.



Announcement: International Accelerator School and U.S. Particle Accelerator School


The next US-CERN-Japan-Russia International Accelerator School will be held in Newport Beach, California from November 5 – 14, 2014 and will concentrate on “Beam Loss and Accelerator Protection”.

This school is intended for physicists and engineers who are or may be engaged in the design, construction, and/or operation of accelerators with high power photon or particle beams and/or accelerator sub-systems with large stored energy. We will present the methods and technologies to identify, mitigate, monitor, and manage the technical risks associated with or operation of accelerators with high power beams or sub-systems with large stored energy the fault or failure modes of which can result in substantial damage to accelerator systems or significance interruption of facility operations. At the completion of the school the participants should be able understand the physical phenomena that can damage machine sub-systems or interrupt operations and to analyze an accelerator facility to produce register of technical risks and the corresponding risk mitigation and management strategies. Attendees residing in the U.S. are encouraged to enroll for University of New Mexico credit. Participants who successfully complete their coursework will earn 2 units of UNM graduate credit.

A limited number of scholarships are available.  Please visit for the program, detailed information and an application form.

We are pleased to announce that our next program of the U.S. Particle Accelerator School of university-style credit courses will be sponsored by Old Dominion University and held in Hampton, Virginia from January 19-30, 2015. Participants may earn 3 credits from Old Dominion University or may choose to audit their course. Financial support is limited and will be awarded on a competitive basis. Participation is open to both U.S. and non-U.S. residents.

One undergraduate-level course and eleven specialized graduate-level courses will be offered:

·         Fundamentals of Accelerator Physics & Technology with Simulations and Measurements Lab (UG)

·         Accelerator Physics

·         Microwave Measurement and Beam Instrumentation Lab

·         SRF Technology:  Practices & Hands-On Measurements

·         Beam Physics with Intense Space Charge

·         Special Topics in Accelerator Physics

·         Vacuum Science & Technology for Accelerator Vacuum Systems

·         Accelerator Power Electronics Engineering

·         Collective Effects in Beam Dynamics

·         Cryogenic Engineering

·         Pulsed Power Engineering

·         Modern Computational Accelerator Physics

Please visit for full details and an application form.

U.S. Particle Accelerator School
Fermilab, MS 125
P.O. Box 500, Batavia, IL  60510
Phone 630-840-3896
Fax 630-840-8500


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