These are Harry Powell's personal pages; sorry this isn't more colourful and stylish!

The Laboratory of Molecular Biology

double helix logo If you are looking for the LMB's home page, it's here

Data processing software

All the MOSFLM stuff can be accessed from here
The most up-to-date version of the MOSFLM User Guide.
MOSFLM FAQ and problem pages.
iMosflm logo The most recent version of iMosflm.
Phil Evans programs - Scala, Aimless, Pointless. Most recent versions, with links back to 2003.

International Year of Crystallography - 2014

IYCr logo UNESCO has designated 2014 as the International Year of Crystallography. Events will be held throughout the year, with the climax at the IUCr's Congress and General Assembly in Montreal, Canada.

Crystallographic organisations

I am currently involved with several different Crystallographic organisations.

BCA logo The principal organisation involved with education and promotion of Crystallography within the British Isles is the British Crystallographic Association. It caters for Crystallography in different fields of science - Biological Structures, Chemical Crystallography, Industrial Crystallography and Physical Crystallography. The interests of Young Crystallographers in all these disciplines are catered for in their own Group.

This year's BCA meeting will be held at the University of Loughborough from 7th - 10th April 2014.

Each of the Groups organises their own meetings in the Autumn and Winter; these meetings address particular issues of current importance and interest.

Membership of the BCA entitles the member to reduced rates of attendance at meetings of both the BCA and of all its Groups; student and post-doctoral members can apply for generous bursaries to help cover the cost of attending relevant meetings both in the UK and abroad.


ECA logo In Europe and Africa, the regional interests of Crystallography come within the purview of the European Crystallographic Association. The ECA organizes a meeting every year in which there is no IUCr Congress.

Last year's European Crystallographic Meeting (ECM28) was held at Warwick University in England.

I am currently the Chairman of the ECA's Special Interest Group in Crystallographic Computing - "SIG9" or "ECACOMSIG", and am looking after their web-pages, which have some information about activities and sources of crystallographic software.

ECACOMSIG will hold a workshop on an Introduction to Software Development for Crystallographers prior to ECM28.


IUCr logo The Global umbrella organization for the National and Regional Crystallographic Associations is the International Union of Crystallography, which has operated since 1948. As well as holding a Congress and General Assembly every three years (the next will be held in Montreal, Canada, from 5th - 12th August 2014), the IUCr publishes scientific journals and books on the topic.

The IUCr's Commission on Crystallographic Computing will hold a Summer School in Ottawa, Canada in from July 29th to August 4th 2014, immediately before the IUCr Congress in Montreal.


Other resources


Pictures